20041040

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3739}}^1$

素因数の和:3819

約数の個数: 40

約数和(自身を含む): 47303520

約数和(自身を除く): 27262480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3739, 5360, 7478, 14956, 18695, 29912, 37390, 59824, 74780, 149560, 250513, 299120, 501026, 1002052, 1252565, 2004104, 2505130, 4008208, 5010260, 10020520, 20041040]

約数ペア:

[(1, 20041040), (2, 10020520), (4, 5010260), (5, 4008208), (8, 2505130), (10, 2004104), (16, 1252565), (20, 1002052), (40, 501026), (67, 299120), (80, 250513), (134, 149560), (268, 74780), (335, 59824), (536, 37390), (670, 29912), (1072, 18695), (1340, 14956), (2680, 7478), (3739, 5360)]